Title (en)

Dye composition

Title (de)

Farbstoffzusammensetzung

Title (fr)

Composition tinctoriale

Publication

EP 1223199 A1 20020717 (EN)

Application

EP 02076148 A 20000121

Priority

• GB 0000119 W 20000120
• GB 9901303 A 19990122

Abstract (en)

The invention provides a dye composition for dyeing fibres comprising (a) an azo dye of formula (II) or a slat thereof, and (b) an azo dye of formula (III) or a salt thereof. The invention provides navy and black dye compositions, especially suitable for dyeing secondary cellulose acetate fibres, with superior fastness properties than known navy/black dyes. Preferably, the α-crystal form of dye (III) is used, which has greater solubility and achieves quicker dyeing than the commonly-used β and γ forms of (III) when dyeing cellulose acetate at 60-95°C. A new method of making the α form is disclosed.

IPC 1-7

C09B 67/22; D06P 3/42; C09B 29/045; C09B 67/48

IPC 8 full level

C09B 67/22 (2006.01); D06P 1/18 (2006.01); D06P 3/42 (2006.01)

CPC (source: EP KR US)

C09B 67/0051 (2013.01 - EP KR US); D06P 1/18 (2013.01 - EP KR US); D06P 3/42 (2013.01 - EP KR US)

Citation (search report)

• [XY] FR 2203855 A1 19740517 - BASF AG [DE]
• [XDY] GB 1112146 A 19680501 - BASF AG
• [Y] EP 0347685 A2 19891227 - BAYER AG [DE]
• [YD] GB 1394367 A 19750514 - ICI LTD
• [Y] GB 2030163 A 19800402 - BASF AG
• [Y] JP H10140029 A 19980526 - KIWA KAGAKU KOGYO KK
• [A] US 3995994 A 19761207 - GREENHALGH COLIN WILLIAM, et al & GB 1438586 A 19760609 - BASF AG

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

WO 0043454 A1 20000727; AT E234901 T1 20030415; AU 3062400 A 20000807; DE 60001690 D1 20030424; DE 60001690 T2 20031016; EP 1066350 A1 20010110; EP 1066350 B1 20030319; EP 1223199 A1 20020717; GB 9901303 D0 19990310; KR 100337746 B1 20020524; KR 20010071088 A 20010728; US 6365718 B1 20020402

DOCDB simple family (application)

GB 0000119 W 20000120; AT 00900696 T 20000120; AU 3062400 A 20000120; DE 60001690 T 20000120; EP 00900696 A 20000120; EP 02076148 A 20000121; GB 9901303 A 19990122; KR 20007010312 A 20000918; US 64680300 A 20000922